Marking device with a movable indexable insert for injection mould.

摘要

Marking device, with indexable moving insert, for injection moulding machine consists of: an outer part (1) in the form of a cylindrical socket with enlarged head (11) and smaller body (12) able to be fitted through mould wall and lower surface (13) being flush with mould wall (8) and having relief or indented indications. It has a central internal bore (11). A central cylindrical body in two independent parts, a head (2) and a tail (3) of the same dia. on the bore and having pref. indented indications on the end (34) which is flush with the mould wall (8) also. The tail (3) can be rotated through stable indexed positions w.r.t to the body (1). an elastic means (4) to immobilise the central body in chosen angular positions. A complimentary form between the ends of the head (2) and tail (3) of the control part to prevent rotation w.r.t. each other. The tail part (3) has an annular groove (32) into which can be located the end of a key (6) and an axial groove (33) opening into the annular groove permitting the passage of the key (6). Indexable marking device for injection moulds. The insert is changeable from inside the mould without demounting it and to realise the greatest possible indexing on the surface. The device is simple and secure.